赤皮青冈人工混交林物种多样性与种间竞争研究
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摘要
为了解赤皮青冈的群落结构,预测其群落动态变化,对福建建瓯上元村赤皮青冈人工混交林进行植被调查,以物种丰富度、多样性指数、优势度指数和均匀度指数作为多样性测度指标对样地进行统计分析,采用Levins测度式和Lotka-Volterra竞争模型研究群落中优势树种的竞争关系。结果表明:样地内共有乔木20种,612株;灌木35种,249株;草本33种,1 364株;群落中灌木层物种丰富度最高,多样性指数、优势度指数和均匀度指数均为草本层>灌木层>乔木层;赤皮青冈在与杉木、栲树、木荷间的竞争均处于劣势地位,与钩栲、白花泡桐、青冈、木油桐间的竞争占优势。
In order to understand the community structure and predict the development of the community, investigation of vegetation in the plantation of Cyclobalanopsis gilva in Jian'ou City,Fujian Province. Using four indexs(species richness index,Shannon-Wienner index,dominance index,and evenness index),and Levins-type measurement and LotkaVolterra competition model,the plant species diversity were analyzed,and the competitive relationship between the dominant species in the community were researched. The results showed that:There are 20 arbor species with 612 trees,35 shrub species with 249 plants,33 herb species with 1364 plants;Species richness index value of shrub layer is the highest,Shannon-Wienner index,dominance index,and evenness index at the different layer in order is herb>shrub>arbor;Cyclobalanopsis gilva has disadvantages in competition for space and resources with Cunninghamia lanceolata,Castanopsis fargesii and Schima superba,and has advantages in competition with Castanopsis tibetana、Paulowniafortunei,Cyclobalanopsis glauca and Vernicia montana.
In order to understand the community structure and predict the development of the community, investigation of vegetation in the plantation of Cyclobalanopsis gilva in Jian'ou City,Fujian Province. Using four indexs(species richness index,Shannon-Wienner index,dominance index,and evenness index),and Levins-type measurement and LotkaVolterra competition model,the plant species diversity were analyzed,and the competitive relationship between the dominant species in the community were researched. The results showed that:There are 20 arbor species with 612 trees,35 shrub species with 249 plants,33 herb species with 1364 plants;Species richness index value of shrub layer is the highest,Shannon-Wienner index,dominance index,and evenness index at the different layer in order is herb>shrub>arbor;Cyclobalanopsis gilva has disadvantages in competition for space and resources with Cunninghamia lanceolata,Castanopsis fargesii and Schima superba,and has advantages in competition with Castanopsis tibetana、Paulowniafortunei,Cyclobalanopsis glauca and Vernicia montana.
引文
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[3]沈琛琛,雷相东,王福有,等.金苍林场蒙古栎天然中龄林竞争关系研究[J].林业科学研究,2012,25(3):339-345.
[4]徐建,韦新良,王敬,等.龙王山落叶阔叶林优势树种的种内种间竞争[J].浙江农林大学学报,2014,31(6):868-876.
[5]谢健.赤皮青冈种群生态学研究[D].福州:福建农林大学,2011.
[6]倪必勇,林文俊,陈世品,等.福建省珍贵用材树种选择与评价[J].森林与环境学报,2015,55(4):351-357.
[7]孟宪宇.测树学[M].北京:中国林业出版社,2006.
[8]周秀英.闽北山地杉木纯林和杉阔混交林林下植物多样性研究[J].林业资源管理,2011(3):65-68.
[9]马建梅,刘金福,郑世群.戴云山自然保护区不同地形植物群落的物种α多样性研究[J].武夷科学,2013(1):49-55.
[10]宋丁全,姜志林,郑作孟,等.光皮桦林优势树种间的竞争[J].南京林业大学学报:自然科学版,2000,43(4):26-28.
[11]吴得荣,王冬梅,刘敏,等.野生板栗群落优势树种间竞争研究[J].湖南农业科学,2011,41(7):115-118.
[12]封磊,洪伟,吴承祯,等.武夷山黄山松林优势种群的竞争格局研究[J].江西农业大学学报,2007,27(3):379-382.
[13]刘宝,陈存及,陈世品,等.福建明溪闽楠天然林群落种间竞争的研究[J].福建林学院学报,2005,46(2):117-120.
[14]吴承祯,洪伟,吴继林,等.长苞铁杉群落种间竞争的研究[J].西北植物学报,2001,22(1):154-159.
[15]张嘉生.钩栲群落优势植物种群竞争的研究[J].福建林业科技,2005,32(4):82-85.